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Inheriting properties from superclass

Fane Preda
Greenhorn

Joined: Dec 06, 2005
Posts: 5
Hello,

In my model I have a series of classes that extend an abstract class named Resource and I want those classes to have mutually exclusive id's (the id being their primary key) because I want to be able to reference any Resource by unique id. I created a sequence in the database (PostgreSQL 8) named "SEQUENCE_GLOBAL_RESOURCE_ID". My code like this:





Example of entity which extends Resource:





Now if I retrieve an Organization, the instance I get has all the fields correct (as in the database) except for id which is 0! Does anyone have any idea why this is happening?

Thanks.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Inheriting properties from superclass